From cab4c467d9c12ec61a652c3bf68eedd166319b34 Mon Sep 17 00:00:00 2001
From: Jay Merrifield <fracmak@gmail.com>
Date: Thu, 3 May 2012 19:02:23 -0400
Subject: [PATCH] Dialog: Handle escape for all overlays. Fixes #8300 - Dialog:
 Incorrect behavior for ESCAPE with multiple modal dialogs.

---
 tests/unit/dialog/dialog_tickets.js | 64 +++++++++++++++++++++++++----
 ui/jquery.ui.dialog.js              | 26 +++++++-----
 2 files changed, 72 insertions(+), 18 deletions(-)

diff --git a/tests/unit/dialog/dialog_tickets.js b/tests/unit/dialog/dialog_tickets.js
index a169bd1a5..98983cf33 100644
--- a/tests/unit/dialog/dialog_tickets.js
+++ b/tests/unit/dialog/dialog_tickets.js
@@ -117,26 +117,76 @@ test("#6645: Missing element not found check in overlay", function(){
 });
 
 test("#6966: Escape key closes all dialogs, not the top one", function(){
-	expect(8);
-    // test with close function removing dialog
-    d1 = $('<div title="dialog 1">Dialog 1</div>').dialog({modal: true});
+	expect(24);
+    // test with close function removing dialog triggered through the overlay
+    d1 = $('<div title="dialog 1">Dialog 1</div>').dialog({modal: true, close: function(){ d1.remove(); }});
     d2 = $('<div title="dialog 2">Dialog 2</div>').dialog({modal: true, close: function(){ d2.remove(); }});
-    ok(d1.dialog("isOpen"), 'first dialog is open');
-    ok(d2.dialog("isOpen"), 'second dialog is open');
-    d2.simulate("keydown", {keyCode: $.ui.keyCode.ESCAPE});
-    ok(d1.dialog("isOpen"), 'first dialog still open');
+
+    ok(d1.data('dialog') && d1.dialog('isOpen'), 'first dialog is open');
+    ok(d2.data('dialog') && d2.dialog('isOpen'), 'second dialog is open');
+    
+    $( document ).simulate('keydown', {keyCode: $.ui.keyCode.ESCAPE});
+    ok(d1.data('dialog') && d1.dialog('isOpen'), 'first dialog still open');
     ok(!d2.data('dialog'), 'second dialog is closed');
+
+    $( document ).simulate('keydown', {keyCode: $.ui.keyCode.ESCAPE});
+    ok(!d1.data('dialog'), 'first dialog is closed');
+    ok(!d2.data('dialog'), 'second dialog is closed');
+
+    d2.remove();
+    d1.remove();
+    
+	// test with close function removing dialog triggered through the dialog
+    d1 = $('<div title="dialog 1">Dialog 1</div>').dialog({modal: true, close: function(){ d1.remove(); }});
+    d2 = $('<div title="dialog 2">Dialog 2</div>').dialog({modal: true, close: function(){ d2.remove(); }});
+
+    ok(d1.data('dialog') && d1.dialog('isOpen'), 'first dialog is open');
+    ok(d2.data('dialog') && d2.dialog('isOpen'), 'second dialog is open');
+    
+    d2.simulate('keydown', {keyCode: $.ui.keyCode.ESCAPE});
+    ok(d1.data('dialog') && d1.dialog('isOpen'), 'first dialog still open');
+    ok(!d2.data('dialog'), 'second dialog is closed');
+
+    d1.simulate('keydown', {keyCode: $.ui.keyCode.ESCAPE});
+    ok(!d1.data('dialog'), 'first dialog is closed');
+    ok(!d2.data('dialog'), 'second dialog is closed');
+
     d2.remove();
     d1.remove();
 
     // test without close function removing dialog
     d1 = $('<div title="dialog 1">Dialog 1</div>').dialog({modal: true});
     d2 = $('<div title="dialog 2">Dialog 2</div>').dialog({modal: true});
+
     ok(d1.dialog("isOpen"), 'first dialog is open');
     ok(d2.dialog("isOpen"), 'second dialog is open');
+
     d2.simulate("keydown", {keyCode: $.ui.keyCode.ESCAPE});
     ok(d1.dialog("isOpen"), 'first dialog still open');
     ok(!d2.dialog("isOpen"), 'second dialog is closed');
+
+    d1.simulate("keydown", {keyCode: $.ui.keyCode.ESCAPE});
+    ok(!d1.dialog("isOpen"), 'first dialog is closed');
+    ok(!d2.dialog("isOpen"), 'second dialog is closed');
+
+    d2.remove();
+    d1.remove();
+
+    // test without close function removing dialog triggered through the overlay
+    d1 = $('<div title="dialog 1">Dialog 1</div>').dialog({modal: true});
+    d2 = $('<div title="dialog 2">Dialog 2</div>').dialog({modal: true});
+
+    ok(d1.dialog("isOpen"), 'first dialog is open');
+    ok(d2.dialog("isOpen"), 'second dialog is open');
+
+    $( document ).simulate("keydown", {keyCode: $.ui.keyCode.ESCAPE});
+    ok(d1.dialog("isOpen"), 'first dialog still open');
+    ok(!d2.dialog("isOpen"), 'second dialog is closed');
+
+    $( document ).simulate("keydown", {keyCode: $.ui.keyCode.ESCAPE});
+    ok(!d1.dialog("isOpen"), 'first dialog is closed');
+    ok(!d2.dialog("isOpen"), 'second dialog is closed');
+
     d2.remove();
     d1.remove();
 });
diff --git a/ui/jquery.ui.dialog.js b/ui/jquery.ui.dialog.js
index 144cf9725..45ee37789 100644
--- a/ui/jquery.ui.dialog.js
+++ b/ui/jquery.ui.dialog.js
@@ -713,21 +713,25 @@ $.extend( $.ui.dialog.overlay, {
 				}
 			}, 1 );
 
-			// allow closing by pressing the escape key
-			$( document ).bind( "keydown.dialog-overlay", function( event ) {
-				if ( dialog.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
-					event.keyCode === $.ui.keyCode.ESCAPE ) {
-
-					dialog.close( event );
-					event.preventDefault();
-				}
-			});
-
 			// handle window resize
 			$( window ).bind( "resize.dialog-overlay", $.ui.dialog.overlay.resize );
 		}
-
+		
 		var $el = ( this.oldInstances.pop() || $( "<div>" ).addClass( "ui-widget-overlay" ) );
+		
+		// allow closing by pressing the escape key
+		$( document ).bind( "keydown.dialog-overlay", function( event ) {
+			var instances = $.ui.dialog.overlay.instances; 
+			// only react to the event if we're the top overlay 
+			if ( instances.length !== 0 && instances[ instances.length - 1 ] === $el && 
+				dialog.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
+				event.keyCode === $.ui.keyCode.ESCAPE ) {
+	
+				dialog.close( event );
+				event.preventDefault();
+			}
+		});
+
 		$el.appendTo( document.body ).css({
 			width: this.width(),
 			height: this.height()